A family party included the following people: one grandfather, one grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one father-in-law, one mother-in-law, and one daughter-in-law. But there were not as many people in attendance as it sounds. How many were there, and who were they?

1/ Make 33 out of 1,2,6 and 7.
2/ Make 34 out of 1,2,6 and 7.

1/ Make 17 out of 1,2,6 and 7.
2/ Make 32 out of 1,2,6 and 7.

There are 3 bags. One contains 2 gold coins, another has 2 silver coins and the 3rd has one of each.
You pick a bag at random, and without looking inside take out one coin. It's gold. What is the probability that the other coin in that bag is also gold?

Combining the digits 1,2,7 and 8, form the integers from 1 to 10.
This is possible with the basic operations +, -, * and / .